A Comparative Field Study of the Relative Importance of Lutzomyia peruensis and Lutzomyia verrucarum as Vectors of Cutaneous Leishmaniasis in the Peruvian Andes

Perez, E.; Villaseca, P.; Davies, C. R.; Llanos Cuentas, Elmer Alejandro

dc.contributor.author	Villaseca, P.
dc.contributor.author	Llanos Cuentas, Elmer Alejandro
dc.contributor.author	Perez, E.
dc.contributor.author	Davies, C. R.
dc.date.accessioned	2022-10-09T17:42:33Z
dc.date.available	2022-10-09T17:42:33Z
dc.date.issued	1993
dc.identifier.uri	https://hdl.handle.net/20.500.12866/12286
dc.description.abstract	A two-year field study of Andean cutaneous leishmaniasis (uta) in the valley of Purisima, Ancash Department, Peru has provided quantitative epidemiologic and entomologic evidence for the predominant role of Lutzomyia peruensis in the transmission of Leishmania peruviana in this endemic area. The monthly incidence in the valley was greatest in the wet season (from December to May), when Lu. peruensis was particularly endophilic. A significant correlation was detected between intradomiciliary (but not extradomiciliary) Lu. peruensis abundance and the monthly incidence of uta in the valley following a one-month time lag. In contrast, no significant correlation was detected between any measure of Lu. verrucarum abundance and the incidence of uta. Lutzomyia peruensis and Lu. verrucarum comprise more than 98% of all the sand fly captures made in this valley. The increase in incidence of uta with altitude, which reached a peak rate between 2,250 and 2,750 meters above sea level, was associated with an increase in the relative abundance of Lu. peruensis as compared with Lu. verrucarum. Seasonal and altitudinal variation was also detected in the peak time of activity for both sand fly species, a phenomenon that could significantly influence the transmission rate: later host-seeking sand flies being more likely to find sleeping, nondefensive, human hosts.	en_US
dc.language.iso	eng
dc.publisher	American Journal of Tropical Medicine and Hygiene
dc.relation.ispartofseries	American Journal of Tropical Medicine and Hygiene
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	Humans	en_US
dc.subject	Peru/epidemiology	en_US
dc.subject	Altitude	en_US
dc.subject	Animals	en_US
dc.subject	Circadian Rhythm	en_US
dc.subject	Humidity	en_US
dc.subject	Incidence	en_US
dc.subject	Insect Vectors/classification/parasitology/physiology	en_US
dc.subject	Leishmaniasis, Cutaneous/epidemiology/transmission	en_US
dc.subject	Prevalence	en_US
dc.subject	Psychodidae/classification/parasitology/physiology	en_US
dc.subject	Rural Health	en_US
dc.subject	Seasons	en_US
dc.title	A Comparative Field Study of the Relative Importance of Lutzomyia peruensis and Lutzomyia verrucarum as Vectors of Cutaneous Leishmaniasis in the Peruvian Andes	en_US
dc.type	info:eu-repo/semantics/article
dc.identifier.doi	https://doi.org/10.4269/ajtmh.1993.49.260
dc.subject.ocde	https://purl.org/pe-repo/ocde/ford#3.03.06
dc.relation.issn	1476-1645